The Rare and Atypical Diabetes Network (RADIANT) Study: Design and Early Results

OBJECTIVE

The Rare and Atypical Diabetes Network (RADIANT) will perform a study of individuals and, if deemed informative, a study of their family members with uncharacterized forms of diabetes.

RESEARCH DESIGN AND METHODS

The protocol includes genomic (whole-genome [WGS], RNA, and mitochondrial sequencing), phenotypic (vital signs, biometric measurements, questionnaires, and photography), metabolomics, and metabolic assessments.

RESULTS

Among 122 with WGS results of 878 enrolled individuals, a likely pathogenic variant in a known diabetes monogenic gene was found in 3 (2.5%), and six new monogenic variants have been identified in the SMAD5, PTPMT1, INS, NFKB1, IGF1R, and PAX6 genes. Frequent phenotypic clusters are lean type 2 diabetes, autoantibody-negative and insulin-deficient diabetes, lipodystrophic diabetes, and new forms of possible monogenic or oligogenic diabetes.

CONCLUSIONS

The analyses will lead to improved means of atypical diabetes identification. Genetic sequencing can identify new variants, and metabolomics and transcriptomics analysis can identify novel mechanisms and biomarkers for atypical disease.

Measuring school level attributable risk to support school-based HPV vaccination programs

Background

In Australia in 2017, 89% of 15-year-old females and 86% of 15-year-old males had received at least one dose of the HPV vaccine. However, considerable variation in HPV vaccination initiation (dose one) across schools remains. It is important to understand the school-level characteristics most strongly associated with low initiation and their contribution to the overall between-school variation.

Methods

A population-based ecological analysis was conducted using school-level data for 2016 on all adolescent students eligible for HPV vaccination in three Australian jurisdictions. We conducted logistic regression to determine school-level factors associated with lower HPV vaccination initiation (< 75% dose 1 uptake) and estimated the population attributable risk (PAR) and the proportion of schools with the factor (school-level prevalence).

Results

The factors most strongly associated with lower initiation, and their prevalence were; small schools (OR = 9.3, 95%CI = 6.1–14.1; 33% of schools), special education schools (OR = 5.6,95%CI = 3.7–8.5; 8% of schools), higher Indigenous enrolments (OR = 2.7,95% CI:1.9–3.7; 31% of schools), lower attendance rates (OR = 2.6,95%CI = 1.7–3.7; 35% of schools), remote location (OR = 2.6,95%CI = 1.6–4.3; 6% of schools,) and lower socioeconomic area (OR = 1.8,95% CI = 1.3–2.5; 33% of schools). The highest PARs were small schools (PAR = 79%, 95%CI:76–82), higher Indigenous enrolments (PAR = 38%, 95%CI: 31–44) and lower attendance rate (PAR = 37%, 95%CI: 29–46).

Conclusion

This analysis suggests that initiatives to support schools that are smaller, with a higher proportion of Indigenous adolescents and lower attendance rates may contribute most to reducing the variation of HPV vaccination uptake observed at a school-level in these jurisdictions. Estimating population-level coverage at the school-level is useful to guide policy and prioritise resourcing to support school-based vaccination programs.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-13088-x.

School-Level Variation in Coverage of Co-Administered dTpa and HPV Dose 1 in Three Australian States

BACKGROUND

Australian adolescents are routinely offered HPV and dTpa (diphtheria, tetanus, pertussis) vaccines simultaneously in the secondary school vaccination program. We identified schools where HPV initiation was lower than dTpa coverage and associated school-level factors across three states.

METHODS

HPV vaccination initiation rates and dTpa vaccination coverage in 2016 were calculated using vaccine databases and school enrolment data. A multivariate analysis assessed sociodemographic and school-level factors associated with HPV initiation being >5% absolute lower than dTpa coverage.

RESULTS

Of 1280 schools included, the median school-level HPV initiation rate was 85% (interquartile range (IQR):75-90%) and the median dTpa coverage was 86% (IQR:75-92%). Nearly a quarter (24%) of all schools had HPV vaccination initiation >5% lower than dTpa coverage and 11 % had >10% difference. School-level factors independently associated with >5% difference were remote schools (aOR:3.5, 95% CI = 1.7-7.2) and schools in major cities (aOR:1.8, 95% CI = 1.0-3.0), small schools (aOR:3.3, 95% CI = 2.3-5.7), higher socioeconomic advantage (aOR:1.7, 95% CI = 1.1-2.6), and lower proportions of Language-background-other-than-English (aOR:1.9, 95% CI = 1.2-3.0).

CONCLUSION

The results identified a quarter of schools had lower HPV than dTpa initiation coverage, which may indicate HPV vaccine hesitancy, and the difference was more likely in socioeconomically advantaged schools. As hesitancy is context specific, it is important to understand the potential drivers of hesitancy and future research needs to understand the reasons driving differential uptake.

Differences in school factors associated with adolescent HPV vaccination initiation and completion coverage in three Australian states

BACKGROUND

Schools are the primary setting for the delivery of adolescent HPV vaccination in Australia. Although this strategy has achieved generally high vaccination coverage, gaps persist for reasons that are mostly unknown. This study sought to identify school-level correlates of low vaccination course initiation and completion in New South Wales, Tasmania, and Western Australia to inform initiatives to increase uptake.

METHODS

Initiation was defined as the number of first doses given in a school in 2016 divided by vaccine-eligible student enrolments. Completion was the number of third doses given in a school in 2015-2016 divided by the number of first doses. Low initiation and completion were defined as coverage ≤ 25thpercentile of all reporting schools. We investigated correlations between covariates using Spearman's rank correlation coefficients. Due to multicollinearity, we used univariable logistic regression to investigate associations between school characteristics and low coverage.

RESULTS

Median initiation was 84.7% (IQR: 75.0%-90.4%) across 1,286 schools and median completion was 93.8% (IQR: 86.0%-97.3%) across 1,295 schools. There were strong correlations between a number of school characteristics, particularly higher Indigenous student enrolments and lower attendance, increasing remoteness, higher postcode socioeconomic disadvantage, and smaller school size. Characteristics most strongly associated with low initiation in univariate analyses were small school size, location in Tasmania, and schools catering for special educational needs. Low completion was most strongly associated with schools in Tasmania and Western Australia, remote location, small size, high proportion of Indigenous student enrolments, and low attendance rates.

CONCLUSION

This study provides indicative evidence that characteristics of schools and school populations are associated with the likelihood of low initiation and completion of the HPV vaccination course. The findings will guide further research and help target initiatives to improve vaccination uptake in schools with profiles associated with lower coverage.

A chlamydia education and training program for general practice nurses: reporting the effect on chlamydia testing uptake

The long-term health consequences of untreated chlamydia are an increased risk of pelvic inflammatory disease, ectopic pregnancies and infertility among women. To support increased chlamydia testing, and as part of a randomised controlled trial of a chlamydia intervention in general practice, a chlamydia education and training program for general practice nurses (GPN) was developed. The training aimed to increase GPNs' chlamydia knowledge and management skills. We compared the difference in chlamydia testing between general practices where GPNs received training to those who didn't and evaluated acceptability. Testing rates increased in all general practices over time. Where GPNs had training, chlamydia testing rates increased (from 8.3% to 19.9% (difference=11.6%; 95% CI 9.4-13.8)) and where GPNs did not have training (from 7.4% to 18.0% (difference=10.6%; 95% CI 7.6-13.6)). By year 2, significantly higher testing rates were seen in practices where GPNs had training (treatment effect=4.9% (1.1 - 8.7)), but this difference was not maintained in year 3 (treatment effect=1.2% (-2.5 - 4.9)). Results suggest a GPN chlamydia education and training program can increase chlamydia testing up to 2 years; however, further training is required to sustain the increase beyond that time.

ADOPTing a new method of partner management for genital chlamydia in New South Wales: findings from a pilot implementation program of patient-delivered partner therapy

Background Patient-delivered partner therapy (PDPT) for chlamydia is an effective and safe additional partner management strategy. Some Australian regulatory changes have been made to support PDPT, but implementation guidance is lacking. This paper describes a pilot implementation program of PDPT in New South Wales (NSW), the Australian Development and Operationalisation of Partner Therapy (ADOPT).

METHODS

ADOPT involved: (1) clarification of the NSW PDPT legal and policy framework; (2) development and implementation of PDPT service models, resources and data collection tools for select publicly funded sexual health services (PFSHS) and Family Planning (FP) NSW clinics; and (3) evaluation of PDPT uptake.

RESULTS

PDPT can be undertaken in NSW if accompanied by adequate provider, patient and partner information. Regulatory amendments enabled medication prescribing. The pilot implementation took place in four PFSHS and five FPNSW clinics from January to December 2016. In PFSHS, 30% of eligible patients were offered PDPT and 89% accepted the offer. In FPNSW clinics, 42% of eligible patients were offered PDPT and 63% accepted the offer. Most partners for whom PDPT was accepted were regular partners.

CONCLUSIONS

A close collaboration of researchers, policy makers and clinicians allowed successful implementation of a PDPT model for chlamydia in heterosexual patients at select PFSHS and FPNSW clinics, providing guidance on its use as standard of care. However, for the full public health benefits of PDPT to be realised, it must be implemented in general practice, where most chlamydia is diagnosed. Further work is recommended to explore feasibility, develop guidelines and promote the integration of PDPT into general practice.

Incomplete recording of Indigenous identification status under-estimates the prevalence of Indigenous population attending Australian general practices: a cross sectional study

BACKGROUND

Australian Aboriginal and Torres Strait Islander (Indigenous) peoples face major health disadvantage across many conditions. Recording of patients' Indigenous status in general practice records supports equitable delivery of effective clinical services. National policy and accreditation standards mandate recording of Indigenous status in patient records, however for a large proportion of general practice patient records it remains incomplete. We assessed the completeness of Indigenous status in general practice patient records, and compared the patient self-reported Indigenous status to general practice medical records.

METHODS

A cross sectional analysis of Indigenous status recorded at 95 Australian general practices, participating in the Australian Chlamydia Control Effectiveness Pilot (ACCEPt) in 2011. Demographic data were collected from medical records and patient surveys from 16 to 29 year old patients at general practices, and population composition from the 2011 Australian census. General practitioners (GPs) at the same practices were also surveyed. Completeness of Indigenous status in general practice patient records was measured with a 75% benchmark used in accreditation standards. Indigenous population composition from a patient self-reported survey was compared to Indigenous population composition in general practice records, and Australian census data.

RESULTS

Indigenous status was complete in 56% (median 60%, IQR 7-81%) of general practice records for 109,970 patients aged 16-29 years, and Indigenous status was complete for 92.5% of the 3355 patients aged 16-29 years who completed the survey at the same clinics. The median proportion per clinic of patients identified as Indigenous was 0.9%, lower than the 1.8% from the patient surveys and the 1.7% in clinic postcodes (ABS). Correlations between the proportion of Indigenous people self-reporting in the patient survey (5.2%) compared to status recorded in all patient records (2.1%) showed a fair association (r = 0.6468; p < 0.01). After excluding unknown /missing data, correlations weakened.

CONCLUSIONS

Incomplete Indigenous status records may under-estimate the true proportion of Indigenous people attending clinics but have higher association with self-reported status than estimates which exclude missing/unknown data. The reasons for incomplete Indigenous status recording in general practice should be explored so efforts to improve recording can be targeted and strengthened.

TRIAL REGISTRATION

ACTRN12610000297022 . Registered 13th April 2010.

The impact of a chlamydia education program on practice nurse's knowledge and attitudes in relation to chlamydia testing: a cross-sectional survey

Background We aimed to determine the impact of a chlamydia (Chlamydia trachomatis) education program on the knowledge of and attitudes towards chlamydia testing of practice nurses (PNs).

METHODS

A cross-sectional survey was conducted at baseline and 6-12 months following recruitment with PNs in the Australian Chlamydia Control Effectiveness Pilot. Likert scales were analysed as continuous variables (scores), and t-tests were used to assess changes in mean scores between survey rounds and groups.

RESULTS

Of the 72 PNs who completed both surveys, 42 received education. Epidemiology knowledge scores increased significantly between surveys in the education group (P<0.01), with change in knowledge being greater in the education group compared with the non-education group (P<0.01). Knowledge of recommended testing scenarios (P=0.01) and retesting following treatment (P<0.01) increased in the education group. Attitudes to testing scores improved over time in the education group (P=0.03), with PNs more likely to want increased involvement in chlamydia testing (P<0.01). Change in overall attitude scores towards testing between surveys was higher in the education group (P=0.05). Barriers to chlamydia testing scores also increased in the education group (P=0.03), with change in barriers greater in the education vs the non-education group (P=0.03).

CONCLUSION

The education program led to improved knowledge and attitudes to chlamydia, and could be made available to PNs working in general practice. Future analyses will determine if the education program plus other initiatives can increase testing rates.

Practice nurse chlamydia testing in Australian general practice: a qualitative study of benefits, barriers and facilitators

Background

Chlamydia infection is a significant public health issue for young people; however, testing rates in Australian general practice are low. Practice nurses (PNs) could have an important role in contributing to increasing chlamydia testing rates. The Australian Chlamydia Control Effectiveness Pilot (ACCEPt), a large cluster randomised control trial of annual testing for 16 to 29 year olds in general practice, is the first to investigate the role of PNs in maximising testing rates. In order to assess the scope for PN involvement, we aimed to explore PN’s views in relation to involvement in chlamydia testing in general practice.

Methods

Semi structured interviews were conducted between June 2011 and April 2012 with a purposive sample of 23 PNs participating in ACCEPt. Interview data was thematically analysed using a conventional content analysis approach.

Results

The participants in our study supported an increased role for PNs in chlamydia testing and identified a number of patient benefits from this involvement, such as an improved service with greater access to testing and patients feeling more comfortable engaging with a nurse rather than a doctor. An alleviation of doctors’ workloads and expansion of the nurse’s role were also identified as benefits at a clinic level. Time and workload constraints were commonly considered barriers to chlamydia testing, along with concerns around privacy in the “small town” rural settings of the general practices. Some felt negative GP attitudes as well as issues with funding for PNs’ work could also be barriers. The provision of training and education, streamlining chlamydia testing pathways in clinics and changes to pathology ordering processes would facilitate nurse involvement in chlamydia testing.

Conclusion

This study suggests that PNs could take a role in increasing chlamydia testing in general practice and that their involvement may result in possible benefits for patients, doctors, PNs and the community. Strategies to overcome identified barriers and facilitate their involvement must be further explored.

Do Australian general practitioners believe practice nurses can take a role in chlamydia testing? A qualitative study of attitudes and opinions

BACKGROUND

Chlamydia notifications continue to rise in young people in many countries and regular chlamydia testing is an important prevention strategy. Although there have been initiatives to increase testing in primary care, none have specifically investigated the role of practice nurses (PNs) in maximising testing rates. PNs have previously expressed a willingness to be involved, but noted lack of support from general practitioners (GPs) as a barrier. We sought GPs' attitudes and opinions on PNs taking an expanded role in chlamydia testing and partner notification.

METHODS

In the context of a cluster randomised trial in mostly rural towns in 4 Australian states, semi structured interviews were conducted with 44 GPs between March 2011 and July 2012. Data relating to PN involvement in chlamydia testing were thematically analysed using a conventional content analysis approach.

RESULTS

The majority of GPs interviewed felt that a role for PNs in chlamydia testing was appropriate. GPs felt that PNs had more time for patient education and advice, that patients would find PNs easier to talk to and less intimidating than GPs, and that GPs themselves could benefit through a reduction in their workload. Although GPs felt that PNs could be utilised more effectively for preventative health activities such as chlamydia testing, many raised concerns about how these activities would be renumerated whilst some felt that existing workload pressures for PNs could make it difficult for them to expand their role. Whilst some rural GPs recognised that PNs might be well placed to conduct partner notification, they also recognised that issues of patient privacy and confidentiality related to living in a "small town" was also a concern.

CONCLUSION

This is the first qualitative study to explore GPs' views around an increased role for PNs in chlamydia testing. Despite the concerns raised by PNs, these findings suggest that GPs support the concept and recognise that PNs are suited to the role. However issues raised, such as funding and remuneration may act as barriers that will need to be addressed before PNs are supported to make a contribution to increasing chlamydia testing rates in general practice.

Using computer-assisted survey instruments instead of paper and pencil increased completeness of self-administered sexual behavior questionnaires

OBJECTIVES

To compare the data quality, logistics, and cost of a self-administered sexual behavior questionnaire administered either using a computer-assisted survey instrument (CASI) or by paper and pencil in a primary care clinic.

STUDY DESIGN AND SETTING

A self-administered sexual behavior questionnaire was administered to 16-29 year olds attending general practice. Questionnaires were administered by either paper and pencil (paper) or CASI. A personal digital assistant was used to self-administer the CASI.

RESULTS

A total of 4,491 people completed the questionnaire, with 46.9% responses via CASI and 53.2% by paper. Completion of questions was greater for CASI than for paper for sexual behavior questions: number of sexual partners [odds ratio (OR), 6.85; 95% confidence interval (CI): 3.32, 14.11] and ever having had sex with a person of the same gender (OR, 2.89; 95% CI: 1.52, 5.49). The median number of questions answered was higher for CASI than for paper (17.6 vs. 17.2; P < 0.01). CASI was cheaper to run at $8.18 per questionnaire compared with $11.83 for paper.

CONCLUSION

Electronic devices using CASI are a tool that can increase participants' questionnaire responses and deliver more complete data for a sexual behavior questionnaire in primary care clinics.

The chlamydia knowledge, awareness and testing practices of Australian general practitioners and practice nurses: survey findings from the Australian chlamydia control effectiveness pilot (ACCEPt)

Background

ACCEPt, a large cluster randomized control trial, aims to determine if annual testing for 16 to 29 year olds in general practice can reduce chlamydia prevalence. ACCEPt is the first trial investigating the potential role of practice nurses (PN) in chlamydia testing. To inform the design of the ACCEPt intervention, we aimed to determine the chlamydia knowledge, attitudes, and testing practices of participating general practitioners (GPs) and PNs.

Methods

GPs and PNs from 143 clinics recruited from 52 areas in 4 Australian states were asked to complete a survey at time of recruitment. Responses of PNs and GPs were compared using conditional logistic regression to account for possible intra cluster correlation within clinics.

Results

Of the PNs and GPs enrolled in ACCEPt, 81% and 72% completed the questionnaire respectively. Less than a third of PNs (23%) and GPs (32%) correctly identified the two age groups with highest infection rates in women and only 16% vs 17% the correct age groups in men. More PNs than GPs would offer testing opportunistically to asymptomatic patients aged ≤25 years; women having a pap smear (84% vs 55%, P<0.01); antenatal checkup (83% vs 44%, P<0.01) and Aboriginal men with a sore throat (79% vs 33%, P<0.01), but also to patients outside of the guideline age group at the time of the survey; 26 year old males presenting for a medical check (78% vs 30%, P = <0.01) and 33 year old females presenting for a pill prescription (83% vs 55%, P<0.01). More PNs than GPs knew that retesting was recommended after chlamydia treatment (93% vs 87%, P=0.027); and the recommended timeframe was 3 months (66% vs 26%, P<0.01). A high proportion of PNs (90%) agreed that they could conduct chlamydia testing in general practice, with 79% wanting greater involvement and 89% further training.

Conclusions

Our survey reveals gaps in chlamydia knowledge and management among GPs and PNs that may be contributing to low testing rates in general practice. The ACCEPt intervention is well targeted to address these and support clinicians in increasing testing rates. PNs could have a role in increasing chlamydia testing.